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Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Treasury Stock | Additional Paid- In Capital | Accumulated Other Comprehensive Income (Loss) | Retained Deficit | Total Shareholders' Equity | Non-controlling Interest
--- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Sep. 30, 2016 | $ 65,339 | $ 132 |  | $ 111,631 | $ (8,876) | $ (35,830) | $ 67,057 | $ (1,718)
Beginning balance (in shares) at Sep. 30, 2016 |  | 13,179,000 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income (loss) | 8,086 |  |  |  |  | 9,131 | 9,131 | (1,045)
Translation adjustment | 423 |  |  |  | 347 |  | 347 | 76
Acquisition of non-controlling interest | 2,687 |  |  |  |  |  |  | $ 2,687
Tax benefit of stock compensation | 18 |  |  | 18 |  |  | 18 |
Proceeds from stock offering, amount | 10,632 | $ 12 |  | 10,620 |  |  | 10,632 |
Proceeds from stock offering (in shares) |  | 1,214,000 |  |  |  |  |  |
Stock compensation expense | 1,328 |  |  | 1,328 |  |  | 1,328 |
Stock options exercised | 1,970 | $ 3 |  | 1,967 |  |  | 1,970 |
Stock options exercised (in shares) |  | 318,000 |  |  |  |  |  |
Ending balance at Sep. 30, 2017 | 90,483 | $ 147 |  | 125,564 | (8,529) | (26,699) | 90,483 |
Ending balance (in shares) at Sep. 30, 2017 |  | 14,711,000 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income (loss) | 5,305 |  |  |  |  | 5,305 | 5,305 |
Translation adjustment | (1,445) |  |  |  | (1,445) |  | (1,445) |
Repurchase of treasury stock | (4,000) |  | $ (4,000) |  |  |  | (4,000) |
Repurchase of treasury stock (in shares) |  |  | (771,000) |  |  |  |  |
Retirement of treasury stock |  | $ (8) | $ 4,000 | (3,992) |  |  |  |
Retirement of treasury stock (in shares) |  | (771,000) | 771,000 |  |  |  |  |
Stock compensation expense | 855 |  |  | 855 |  |  | 855 |
Stock options exercised | 1,892 | $ 3 |  | 1,889 |  |  | 1,892 |
Stock options exercised (in shares) |  | 277,000 |  |  |  |  |  |
Ending balance at Sep. 30, 2018 | $ 93,090 | $ 142 |  | 124,316 | (9,974) | (21,394) | 93,090 |
Ending balance (in shares) at Sep. 30, 2018 | 14,216,596 | 14,217,000 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income (loss) | $ (5,162) |  |  |  |  | (5,162) | (5,162) |
Translation adjustment | (1,259) |  |  |  | (1,259) |  | (1,259) |
Stock compensation expense | 573 |  |  | 573 |  |  | 573 |
Stock options exercised | 210 | $ 1 |  | 209 |  |  | 210 |
Stock options exercised (in shares) |  | 52,000 |  |  |  |  |  |
Ending balance at Sep. 30, 2019 | $ 87,452 | $ 143 |  | $ 125,098 | $ (11,233) | $ (26,556) | $ 87,452 |
Ending balance (in shares) at Sep. 30, 2019 | 14,268,797 | 14,269,000 |  |  |  |  |  |

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